💣Exploit CVE-2023-48643 - Shrubbery tac_plus 2.x, 3.x. and 4.x through F4.0.

[Maksim]

CVE ID : CVE-2023-48643
Published : May 16, 2024, 4:15 p.m. | 1 hour, 28 minutes ago
Description : Shrubbery tac_plus 2.x, 3.x. and 4.x through F4.0.4.28 allows unauthenticated Remote Command Execution. The product allows users to configure authorization checks as shell commands through the tac_plus.cfg configuration file. These are executed when a client sends an authorization request with a username that has pre-authorization directives configured. However, it is possible to inject additional commands into these checks because strings from TACACS+ packets are used as command-line arguments. If the installation lacks a a pre-shared secret (there is no pre-shared secret by default), then the injection can be triggered without authentication. (The attacker needs to know a username configured to use a pre-authorization command.) NOTE: this is related to CVE-2023-45239 but the issue is in the original Shrubbery product, not Meta's fork.
Severity: 0.0 | NA
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